ETD vs ETA in Shipping: What They Mean and Which to Plan Around
Once an order has shipped, the conversation turns to two dates: ETD and ETA. They look final, and they are often treated as if they were. In practice both are estimates that move, and the date that matters to your business comes later than either of them.
What ETD means
ETD stands for estimated time of departure. It is the date the vessel or flight is scheduled to leave the origin port with your cargo on board. Once it has actually left, the date becomes the ATD, the actual time of departure.
What ETA means
ETA stands for estimated time of arrival. It is the date the vessel is expected at the destination port. Once it arrives, it becomes the ATA. ETA means arrival at the port, not at your warehouse.
How they relate to the ex-factory date
The ex-factory date comes first. Goods leave the factory, are trucked to the port, delivered before the cut-off and loaded. The vessel then departs on the ETD, sails for the transit time and arrives on the ETA. If the XF date slips, the cargo can miss its cut-off and roll to the next vessel, so the ETD and ETA both move with it.
Why ETD and ETA change
- Rolled cargo: the cargo missed the cut-off, or the vessel was overbooked, so it moves to the next sailing.
- Schedule changes: carriers adjust routes and port calls, and sometimes cancel a sailing altogether, known as a blank sailing.
- Port congestion and weather: vessels wait for a berth or slow down.
- Transhipment: cargo that changes vessel at a hub port can miss its connection.
Treat an ETA as a forecast. Check it against the carrier's or forwarder's tracking each week, and expect it to change at least once on most sea shipments.
ETA is not the date your stock is available
After the vessel arrives, the container has to be discharged, cleared by customs, released by the shipping line, collected and delivered, then unpacked and received into your warehouse. That can take anywhere from a few days to a couple of weeks, longer if the goods are held for inspection. Watch the free days as well: if the container is not collected before the last free day, storage and detention charges start.
The date to plan around
Plan around a due-in-warehouse date, worked out as the ETA plus your normal clearance and delivery time, plus a buffer. That is the date to promise to customers and set launches by. Then track backwards: if the ETD moves, the ETA moves, and the due-in date moves with them.
- Record the ETD and ETA from the booking confirmation.
- Add your usual clearance and delivery days to get the due-in-warehouse date.
- Update the ETA from tracking each week, and move the due-in date when it changes.
- Flag any order where the new due-in date is later than the date you need the stock.
ImportHQ records the vessel, ETD and ETA on each shipment, carries the due-in-warehouse date onto the purchase order, and shows the late orders in a weekly delivery report.
When an ETA pushes stock past a launch date, part of the order often goes by air. Compare air and sea in the free landed cost calculator. Open the free landed cost calculator
The bottom line
ETD is when the cargo leaves, ETA is when it reaches the port, and both are estimates. Neither is the day you can sell. Plan around a due-in-warehouse date built from the ETA, keep it updated as the ETA moves, and you will spot late stock while there is still time to tell customers or split the order.
Related guides
- XF, EXF, ETD, ETA, CRD: Production and Shipping Abbreviations Explained
- Cargo Ready Date (CRD) vs Ex-Factory Date: Are They the Same?
- Your Supplier Missed the Ex-Factory Date. What Now?
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